呼叫selenium 卻報以下資訊：

D:\python3\python.exe E:/python_pro/city_spider/city_spider/spiders/city_spider.py
Traceback (most recent call last):
  File "D:\python3\lib\site-packages\selenium\webdriver\common\service.py", line 77, in start
    stdin=PIPE)
  File "D:\python3\lib\subprocess.py", line 947, in __init__
    restore_signals, start_new_session)
  File "D:\python3\lib\subprocess.py", line 1224, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] 系統找不到指定的檔案。

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "E:/python_pro/city_spider/city_spider/spiders/city_spider.py", line 5, in <module>
    browser = webdriver.Chrome()
  File "D:\python3\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 68, in __init__
    self.service.start()
  File "D:\python3\lib\site-packages\selenium\webdriver\common\service.py", line 84, in start
    os.path.basename(self.path), self.start_error_message)
selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home


Process finished with exit code 1
 

表示selenium呼叫谷歌瀏覽器驅動找不到

解決方法：

1. 下載chromedriver驅動，下載地址。
2. 下載下來的chromedriver.exe，複製到在谷歌瀏覽器的安裝目錄下和Python的安裝目錄下
3. 在環境變數中加入谷歌的安裝目錄（如：C:\Program Files (x86)\Google\Chrome\Application）